Mail-bag lock



Aug. -24 1926.

J. E. DENNIS MAiL BAG'LOCK Filed Nov. 5. 1925 Patented Aug. 24, 1926.

JOHN EVERETT DENNIS, CF DOWNIHG, WISCONSIN.

MAIL-BAG LOCK.

Application filed. November 5, 1925. Serial m. 67,103.

The invention relates to mail bag locks, and has for its object to provide a device of this character comprising an elongated body member having parallel rope receiving apertures therein extending longitudinally of the body member and a T -shaped clamping member extending transversely within a chamber within the body member in communication with the apertures extending through the bodymember, the opposite arms of said T-shaped clamping member underlying the ropes within the apertures wherebysaid ropes maybe clamped against movement. i y

A further object is to provide a clamping lever having discs eccentrically pivoted to the upwardly extending arm of the clamping member andQcooperating with a plate secured to the body member whereby said clamping member may be forced to clamped position. Also to provide the lever with an aperture which receives an apertured lug, which apertured lug is adapted to receive a lock bail in the aperture thereof for locking the lever against movement.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing Figure 1 is a perspective view of the mail bag lock.

Figure 2 is a vertical longitudinal sectional view through the lock taken on line 2-2 of Figure 1.

Figure 3 is a vertical transverse sectional view taken on line 3-3 of Figure 1.

Figure 1 is a vertical transverse sectional view taken on line 14 of Figure 1.

Referring to the drawing, the numeral 1 designates an elongated body member of the locking device which may be formed from any kind of material, however it is preterably formed from metal. Extending longitudinally through the body member 1 in parallel relation to each other are rope receiving chambers 2, through which the rope ends 3 extend. Extending transversely within the body member 1 and connecting the chambers 2 is a chamber l, in which is vertically slidable the horizontal portion 5 and the vertical portion 6 of the clamping device. The horizontal portion 5 of the clamping device engages under the r-ope ends 3 and when forced upwardly clamp the rope ends against the upper wall of the chambers 2 and 8, thereby securely holding the same against longitudinal movement. Secured to the upper side of the body member 1 is a removable plate 7, which plate adjacent one of its-ends is provided with arectangularly shaped portion 8, which closely fits within a recess 9 in the top of the body member 1, thereby not only bracing the plate 7, but forming a rigid enlargement in a bearing 10 of which the arm 8 is slid-ably mounted, therefore it will be seen that the T-shaped clamping member is positively guided in its upward and downward movement, and the opposite sides of the T-shaped member is braced against lateralmovement by engagement with the opposite walls 01 the recess 1. It will be noted that the chamber 4 extends below the bottom of the chambers 2, and the horizontal portions 5 thereof, when in the bottom of the chamber, is below the chain'- bers 2 thereby allowing a maximum size rope to be used.

Eccentrically pivoted on a transversely disposed pin 11 carried by the upper end of the arm 6 are spaced discs 12, which discs are provided with a single lever 13, which when forced downwardly, into engagement with the upper side of the plate 7, moves the discs 12 downwardly in engagement with the plate 7, thereby imparting an upward pull on the arm 6 of the clamping member, and forcing the horizontal arm 5 into clamping engagement with the rope ends 3. Extending vertically through the body member 1 and the plate 7, and the partition 14 between the chambers 2 is the shank 15 of a lock bail receiving eye 16, which eye extends through the elongated aperture 17 in the lever 13 when the lever is in closed position as shown in Figure 1, therefore it will be seen that a lock may be attached to the eye 16 for locking the clamping device in closed position and preventing unauthorized persons from unlocking the device. The discs 12 are eccentrically mounted whereby when the lever 18 is in closed position they will en gage the plate 7 at opposite sides to their pivotal points, therefore it will be seen that after tlG rope clamping operation danger of the lever 13 being forced to opening position before the lock is applied will be obviated.

From the above it will be seen that a mail bag lock is provided which is simple in construction, compact, and it will also be seen that the T-shaped clamping member 6 may be forcedfrom a single piece of material and placed in the chamber 4 by inserting one end of the horizontal portion 5 into the chamber at a downwardly and outwardly inclined angle, and then moving the arm 5 to a horizontal position.

The invention having been set forth what is claimed as new and useful is 1.. A mail bag lock comprising elongated body member having parallel rope receiving chamber extending entirely therethrough, a wall dividing said chambers, a transversely vdisposed chamber extending through the wall and under the rope chambers, a horizontally disposed clamping bar in the bottom of the ransversely disposed chamber and adapt ed to engage the under sides of ropes within the longitudinally disposed chambers, an upwardly extending arm carried by the clamping bar, discs ecoentrically pivoted to the upper end of the upwardly extending arm, a handle member carried by said discs, said discs cooperating with the upper side of the body member when the handle member is moved into engagement with the upper side of. the body member for clamping the rope and an apertured eye carried by the body member and extending through an aperture in the handle member.

2. A mail sack lock comprising an elongated body member having rope receiving chamber extending entirely through the same and a transversely disposed clamp receiving chamber of greater depth than the depth of the longitudinal chamber, a clamping bar disposed in the transversely disposed chamber, a vertically slidable bar carried by the clamping bar in the plane of the wall, a

plate detachably secured to the upper side of the body member, a downwardly extending enlargement carried by the under side of the plate and disposed in an opening in the body member in communication with the transversely disposed chamber, said vertically disposed arm being slidably mounted in a bearing of the enlargement and the plate, eccentrically mounted discspivotally connected to the vertically disposed arm and cooperating with the upper side of the plate, an arm carried by said disc and provided with an aperture adjacent its free end and an apertured eye extending upwardly from the plate and adapted to be received in the aperture of the disc carried arm.

In testimonywhereof I have si ned my name to this specification.

JOHN EVERETT DENNIS. 

